in my opinion if it doesn't work fine with 1gb it's not worth installing
You'll probably change that opinion of yours in the near future as more software(s) are compatible with Vista IMO. On a side note, 4GB is only the "minimum requirement" from what I've heard.
I don't like Vista, too slow. But I hate IE, validating code and then getting it to work in IE is a nightmare. I had Jquery and CSS issues today with IE I'm a Mac guy after using Vista for a while, got a 24 inch iMac and a MacBook